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Classes Cat and Dog inherit from the class Mammal. What are the correct answers ?
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In this code, the class B extends the class A. The class B overrides the method talk() from the class A. The object b is an instance of the class B. The object a is an instance of the class A. The object a is assigned to the object b. The object a calls the method talk(). The method talk() from the class B is called.1
What does the following code return ?
public class A {
public void talk() {
echo "I am A"
}
public secretTalk() {
this.talk()
}
}
public class B extends A {
private void talk() {
echo "I am B"
}
public secretTalk() {
this.talk()
}
}
A b = new B()
b.talk()
b.secretTalk()
Answer : "I am A" "I am B"